Visual on the figure below. Perimeter of the segment th p r 180 2r sin th2. Area of Circle pr2 or pd24 square unit where p 227 or 314.
Radius r 3.
Math 7th grade Geometry Area and circumference of circles. Area Calculation Tool Area Area of Irregular Polygons Geometry. R radius of circle. We know that the area of a circle is p r² where r is the radius of the circle.